$CEMP is one of biggest losers #stocks today. read more:

Cempra, Inc. (symbol: CEMP) was one of the worst losers of the trading day
today (2015-09-29), losing -11.81%. The number of shares that changed hands
was 1,903,776, or about 2 times the average daily volume in the stock.
The closing price was $24.65, amounting to a market cap of $1,080,000,000,
about -47.54% off the highest price in the last 12 months. The stock has
been trading at a range between $10.7 and $46.99.
CEMP is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2012.